WEST Physics Basis

C. Bourdelle , J.F. Artaud , Vincent Basiuk , M. Bécoulet , S. Brémond , J. Bucalossi , H. Bufferand , G. Ciraolo , L. Colas , Y. Corre , X. Courtois , J. Decker , L. Delpech , P. Devynck , Guilhem Dif-Pradalier , R.P. Doerner , D. Douai , Rémi Dumont , A. Ekedahl , N. Fedorczak , C. Fenzi , M. Firdaouss , J. Garcia , Philippe Ghendrih , C. Gil , G. Giruzzi , M. Goniche , C. Grisolia , A. Grosman , D. Guilhem , R. Guirlet , J. Gunn , Pascale Hennequin (1) , J. Hillairet , T. Hoang , Frédéric Imbeaux , Irena Ivanova-Stanik , E. Joffrin , A. Kallenbach , J. Linke , T. Loarer , P. Lotte , P. Maget , Yannick Marandet , M.L. Mayoral , O. Meyer , M. Missirlian , P. Mollard , P. Monier-Garbet , P. Moreau , Eric Nardon , B. Pégourié , Y. Peysson , R. Sabot , F. Saint-Laurent , M. Schneider , J. M. Travère , E. Tsitrone , S. Vartanian , Laure Vermare (1) , M. Yoshida , R. Zagorski , Contributors Jet

1 LPP - Laboratoire de Physique des Plasmas

With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossi et al 2014 Fusion Eng. Des. 89 [http://dx.doi.org/10.1016/j.fusengdes.2014.01.062] 907?12 ), the Tore Supra facility and team expertise (Dumont et al 2014 Plasma Phys. Control. Fusion 56 [http://dx.doi.org/10.1088/0741-3335/56/7/075020] 075020 ) is used to pave the way towards ITER divertor procurement and operation. It consists in implementing a divertor configuration and installing ITER-like actively cooled tungsten monoblocks in the Tore Supra tokamak, taking full benefit of its unique long-pulse capability. WEST is a user facility platform, open to all ITER partners. This paper describes the physics basis of WEST: the estimated heat flux on the divertor target, the planned heating schemes, the expected behaviour of the L?H threshold and of the pedestal and the potential W sources. A series of operating scenarios has been modelled, showing that ITER-relevant heat fluxes on the divertor can be achieved in WEST long pulse H-mode plasmas.

Domaines: Physique des plasmas [physics.plasm-ph]

C. Bourdelle, J.F. Artaud, Vincent Basiuk, M. Bécoulet, S. Brémond, et al.. WEST Physics Basis. Nuclear Fusion, 2015, 55 (6), pp.063017. ⟨10.1088/0029-5515/55/6/063017⟩. ⟨hal-01550957⟩